Home / 12,860.13-17,737.16-11,070.55

Finding the Fourth Proportional to 12,860.13, 17,737.16 and 11,070.55

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Solution

The fourth proportional to 12,860.13, 17,737.16 and 11,070.55 is: 15,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.13 : 17,737.16 = 11,070.55 : x
  2. Step 2: Convert to fraction form
    12,860.13/17,737.16 = 11,070.55/x
  3. Step 3: Cross multiply
    12,860.13x = 17,737.16 × 11,070.55
  4. Step 4: Simplify right side
    12,860.13x = 196,360,116.64
  5. Step 5: Solve for x
    x = 196,360,116.64/12,860.13
  6. Step 6: Final answer
    x = 15,268.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.